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Çѱ¹¼öÀÚ¿øÇÐȸ / v.40, no.9, 2007³â, pp.735-742
»ó¼ö°ü¸ÁÀÇ ½Å·Úµµ »êÁ¤À» À§ÇÑ Segment ±â¹ÝÀÇ Minimum Cutset ¹æ¹ý
( A Segment-based Minimum Cutset Method for Estimating the Reliability of Water Distribution Systems )
Àüȯµ·;¹ÚÀçÀÏ;¹éõ¿ì;±èÁßÈÆ; Çѹç´ëÇб³ Åä¸ñ°øÇаú;°í·Á´ëÇб³ ºÎ¼³ ¹æÀç°úÇбâ¼ú¿¬±¸¼¾ÅÍ;°í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà.»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà.»çȸȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ½ÇÁ¦ ´ëÇü »ó¼ö°ü¸Á¿¡¼­ º¸´Ù È¿À²ÀûÀ̸鼭µµ Á¤È®ÇÑ ½Å·Úµµ¸¦ ÃßÁ¤ÇÒ ¼ö ÀÖ´Â segment¸¦ ±â¹ÝÀ¸·Î ÇÑ minimum cutset ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. ±âÁ¸ÀÇ »ó¼ö°ü¸Á¿¡¼­ minimum outsetÀ» ±â¹ÝÀ¸·Î ÇÑ ¸ðÇüÀº »ó¼ö°üÀ» minimum outsetÀÇ ÃÖ¼Ò´ÜÀ§·Î ´Ù·ç¾î »ó¼ö°ü ÆÄ±«¿¡ µû¸¥ ÇÇÇØ¿µ¿ªÀ» °ú¼Ò»êÁ¤ÇÒ ¼ö ÀÖ´Â ¹®Á¦Á¡À» °¡Áö°í ÀÖ´Ù. ±×·¯³ª Á¦¾ÈµÈ ½Å·Úµµ ÃßÁ¤ ¸ðÇüÀº ±âÁ¸ ½Å·Úµµ ÃßÁ¤ ¸ðÇü°ú ´Þ¸®, »ó¼ö°ü ÆÄ±«¿¡ µû¸¥ ÇÇÇØ¿µ¿ªÀ» Çö½ÇÀûÀ¸·Î ÃßÁ¤Çϱâ À§ÇÏ¿© segment¿Í unintended isolation, ±×¸®°í ¼ö¸®ÇÐÀû ÇÇÇØÀÎ ¾Ð·ÂÀúÇÏ¿µ¿ªÀ» µµÀÔÇÏ¿´´Ù. ¶ÇÇÑ minimum cutset ¹æ¹ý¿¡¼­ Á¤ÀÇµÉ ¼ö ÀÖ´Â minimum cutsetÀ» »ó¼ö°ü¸Á ³» ÀϺΠÀýÁ¡ÀÇ ºñÁ¤»ó »óŸ¦ ¾ß±âÇÏ´Â segment 1°³·Î Á¤ÀÇÇÏ¿´À¸¸ç Á¤ÀÇµÈ minimum outsetÀÇ µ¿½ÃÆÄ±«Á¶ÇÕÀÇ È®·üÀ» °í·ÁÇϱâ À§ÇÏ¿© success mode approach¸¦ Àû¿ëÇÏ¿´´Ù. Á¦¾ÈµÈ ¸ðÇüÀº Á¦¼ö¹ëºêÀÇ À§Ä¡¿Í ¼ö¸¦ °í·ÁÇÏ¿© »ó¼ö°ü ÆÄ±«¿¡ µû¸¥ ÇÇÇØ¿µ¿ªÀ» ÃßÁ¤Çϸç, ½ÇÁ¦ ´ëÇü »ó¼ö°ü¸ÁÀÎ Chester Water Authority¿¡ Àû¿ëÇÑ °á°ú, ±âÁ¸ ½Å·Úµµ ÃßÁ¤ ¸ðÇü°ú ºñ±³ÇÒ ¶§ º¸´Ù ½ÇÁ¦ÀûÀÎ ÇÇÇØ¿µ¿ªÀÇ ÃßÁ¤°ú ÀÌ¿¡ µû¸¥ ½Å·ÚµµÀÇ ÃßÁ¤ÀÌ °¡´ÉÇÏ¿´´Ù.
In this study, a methodology which is based on segments and minimum outsets to estimate the reliability of a real water distribution system efficiently and accurately is suggested. The current reliability assessment models based on minimum cutset consider a pipe as only area impacted by a pipe failure which incurs underestimation of pipe failure impact. In contrary, the suggested methodology adopts "segment" and "unintended isolation" with the hydraulic pressure failure area to define the actual service interruption area in a water distribution system due to a pipe failure, which is different from the Previous reliability estimating methodologies. In addition, a minimum cutset is defined as a single segment incurring abnormal operating conditions and the success mode approach is used to account for the probability of multiple failure combinations of minimum outsets. The model considers numbers and locations of on-off valves when the service interruption area is defined. Once the methodology is applied to a real water distribution system, it is possible to define actual service interruption areas and using the defined areas, the reliability of the water distribution system is estimated reliably, compared with the previous reliability assessment methodologies.
 
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»ó¼ö°ü¸Á;½Å·Úµµ ¸ðÇü;Water Network;Reliability Assessment Model;Segment;Minimum Cutset;Success Mode Approach;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.40, no.9, 2007³â, pp.735-742
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734515981623)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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